On the one hand, signing up for a marathon is a great motivator. If I make the financial and emotional commitment I'll have no choice but to commit myself physically and put in the miles. It could also serve as a way to regain some of the fitness I've lost.
On the other hand training through the winter months isn't going to be any fun (case in point: today's raining, sleeting, snowstorm).
"Indecision may or may not be my problem."